Go Embedded Applications

Embedded Applications in Go The Go language is suitable for the development of embedded applications, which usually run on constrained devices. To get started, you need to install the Go toolchain and TinyGo compiler. The embedded Go application code structure includes main.go (entry point), board.go (hardware board code), and app.go (application logic). TinyGo supports cross-compilation to various embedded hardware boards, such as Arduino UNO. As an example, an application written in Go can blink an LED on an Arduino UNO.

Embedded applications of Go

Introduction

The Go language relies on its high Concurrency and cross-platform features make it ideal for embedded application development. Embedded applications typically run on memory- and resource-constrained devices such as microcontrollers and sensors.

Getting Started

To start an embedded Go application, you need a system with the Go toolchain installed. Then install the tinygo tool, which is a Go compiler designed for embedded devices.

$ go install github.com/tinygo-org/tinygo/cmd/tinygo

Code Organization

Embedded Go applications typically follow the following code organization structure:

• main.go : Contains the main function and the entry point of the program.
• board.go: Code related to a specific hardware board, such as GPIO pin configuration.
• app.go: Application logic, such as sensor reading processing.

Supported Hardware

TinyGo supports cross-compilation for a variety of embedded hardware boards, including:

• Arduino UNO
• ESP32
• Raspberry Pi
• STM32

Practical case: flashing LED

The following is Embedded application written in Go to blink LED on Arduino UNO:

main.go

package main

import "tinygo.org/x/drivers/arduino"

func main() {
    led := arduino.D13 // Arduino UNO LED
    for {
        led.Set(arduino.HIGH)
        time.Sleep(500 * time.Millisecond)
        led.Set(arduino.LOW)
        time.Sleep(500 * time.Millisecond)
    }
}

Compile and run
Save main.go to your working directory and compile:

$ tinygo build -target arduino main.go

Once the compilation is complete, use the following command to upload the program to the Arduino UNO:

$ tinygo flash -target arduino main.go

Now, you You should see the LED on the Arduino UNO flash.

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